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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 8. Отображено 8.
22-08-2023 дата публикации

Synthesis method for preparing dimethyl sebacate by using silicon dioxide loaded perfluorinated sulfonic acid resin catalyst with high specific surface area

Номер: CN116621695A
Принадлежит:

The invention provides a synthetic method for preparing dimethyl sebacate by using a high-specific-surface-area silicon dioxide-loaded perfluorinated sulfonic acid resin catalyst, which comprises the following steps: dispersing high-specific-surface-area silicon dioxide into a mixed solution of ethanol, water and hydrochloric acid, namely a solution A, dispersing perfluorinated sulfonic acid resin into absolute ethyl alcohol, namely a solution B, mixing the solution A and the solution B, drying by distillation under water bath stirring to obtain a solid, and then washing, acidifying and drying to obtain the silicon dioxide loaded perfluorinated sulfonic acid resin catalyst. Sequentially adding sebacic acid and methanol into the reaction kettle, and then adding the silicon dioxide loaded perfluorinated sulfonic acid resin catalyst to catalyze the reaction to obtain the product dimethyl sebacate; the silicon dioxide loaded perfluorinated sulfonic acid resin catalyst synthesized by the method ...

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07-04-2023 дата публикации

Co-Sb composite hard carbon material, preparation method thereof, negative pole piece and application

Номер: CN115939353A
Принадлежит:

The invention relates to the technical field of battery negative electrode materials, in particular to a Co-Sb composite hard carbon material, a preparation method thereof, a negative electrode piece and application. According to the method, a Co source and a Sb source are combined to obtain a Co-Sb material, then organic carbon is deposited and coated on the basis of taking the Co-Sb material as a core, and finally the Co-Sb composite hard carbon material is obtained through carbonization, the method is simple and easy to implement, Co elements and Sb with the electrocatalysis effect are compounded, then the carbon material is compounded, and the negative electrode material can generate excellent electrochemical performance. When the material is used as a negative electrode material, the problem that the capacity of the negative electrode material is limited can be solved, the reversible capacity of the negative electrode material is improved, meanwhile, the material still has excellent ...

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29-08-2023 дата публикации

Negative electrode material, preparation method, secondary battery and electric equipment

Номер: CN116666627A
Принадлежит:

The invention discloses a negative electrode material, a preparation method, a secondary battery and electric equipment. The negative electrode material comprises an active material and N-doped nanofibers loaded with the active material, wherein the active material comprises a scandium element and a selenium element. The preparation method of the negative electrode material comprises the following steps: dispersing a first raw material containing a selenium element, a second raw material containing a scandium element, a third raw material containing a nitrogen element and a fourth raw material containing a carbon element in an organic solvent to obtain a mixed solution; and preparing the mixed solution into nanofibers, and calcining the nanofibers to obtain the negative electrode material. The active material contains the scandium element and the selenium element, the scandium element is a sodium inert substance and does not have a chemical reaction with sodium, the structural stability ...

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04-07-2023 дата публикации

Negative electrode material and preparation method and application thereof

Номер: CN116387512A
Принадлежит:

The invention relates to the technical field of batteries, in particular to a negative electrode material and a preparation method and application thereof. The negative electrode material disclosed by the invention comprises a composite material of CrSbS3 and reduced graphene oxide; in the negative electrode material, the mass content of the reduced graphene oxide is 15-25%. The negative electrode material obtained by compounding the CrSbS3 and the reduced graphene oxide has high capacity and excellent stability and conductivity.

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23-05-2023 дата публикации

Flexible composite energy collector based on piezoelectricity and photoelectricity and manufacturing method thereof

Номер: CN116155173A
Принадлежит:

The invention relates to the technical field of energy collection, and particularly discloses a flexible composite energy collector based on piezoelectricity and photoelectricity and a manufacturing method of the flexible composite energy collector. The flexible energy collector comprises a conductive substrate, a piezoelectric module and a photoelectric module, the piezoelectric module and the photoelectric module are arranged on the conductive substrate, and the piezoelectric module comprises a zinc oxide nanorod array and a first metal electrode which are sequentially arranged from bottom to top. The photoelectric module comprises a zinc oxide nanorod array, a cuprous oxide thin film and a second metal electrode which are sequentially arranged from bottom to top; when the zinc oxide nanorod array is located in the piezoelectric module, the zinc oxide nanorod array acts as a piezoelectric film; when the zinc oxide nanorod array is in the photoelectric module, the zinc oxide nanorod array ...

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28-07-2023 дата публикации

Method for preparing thermal thermophilus fermentation product by using tremella fuciformis extracting solution

Номер: CN116497077A
Принадлежит:

The invention discloses a method for preparing a Thermus thermophilus fermentation product by using a tremella fuciformis extracting solution, which comprises the following steps of: S1, performing solid-liquid separation on the tremella fuciformis extracting solution, and sterilizing supernate for later use or sterilizing with residues for later use; s2, taking the tremella fuciformis extracting solution prepared in the step S1 as a fermentation culture medium, firstly inoculating saccharomyces cerevisiae into the fermentation culture medium for fermentation culture, and then inoculating thermophilic thermophilic bacteria for co-fermentation culture; s3, after fermentation is finished, solid-liquid separation is carried out, and fermentation liquor obtained through separation is a thermophilic bacteria fermentation extracellular product with biological activity; and S4, carrying out concentration and alcohol precipitation treatment on the fermentation liquor obtained by separation in the ...

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09-05-2023 дата публикации

Electrolytic chlorine production system

Номер: CN116083934A
Принадлежит:

The invention provides an electrolytic chlorine production system. The electrolytic chlorine production system comprises a water softener, a salt dissolving tank, a descaling device, a strong brine tank, a filter, a first mixer, a dilute brine tank, an electrolytic bath and a sodium hypochlorite storage tank, an inlet of the water softener is used for being connected with a water inlet pipe, an outlet of the water softener is divided into two paths, one path of outlet of the water softener is communicated with an inlet of the first mixer, the other path of outlet of the water softener is communicated with an inlet of the salt dissolving box, an outlet of the salt dissolving box is communicated with an inlet of the strong brine box, and an outlet of the strong brine box is communicated with an inlet of the filter. An outlet of the filter is communicated with an inlet of the first mixer; an outlet of the first mixer is communicated with an inlet of the dilute brine tank, an outlet of the ...

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25-07-2023 дата публикации

Lightweight distributed account book construction method, equipment and medium

Номер: CN116485538A
Принадлежит:

The invention discloses a lightweight distributed account book construction method and device and a medium, and belongs to the field of distributed account book construction, and the method comprises the steps: constructing a consensus network through the fusion of consensus and sorting; and multi-channel support of the whole account book is realized through a consensus algorithm capable of configuring the number of endorsement nodes and a system chain, and a consensus transaction process is realized through the consensus algorithm capable of configuring the number of endorsement nodes and the system chain. According to the invention, a relatively light and efficient distributed account book construction mode is realized.

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